Aero Accessories, Inc. ‘Tempest’ AA3200 Series, AA240 Series, & AA400 Series Dry Air pumps incorporate their patented “channel cut” in the mounting flange face, which when utilized with their patented LRT Diverter, is designed to channel oil away from mechanical workings of the pump, if the drive pad’s oil seal begins to leak. The Closed Front End is designed to elimate oil and or / solvent residues from entering the pump’s drive mechanism.

Does the AA442CW come with a gasket?
Yes, part number 10-23600, does come with a gasket.